for me the UI to arrange Apps at SmartTV home is very bad. What I see at the screen is two lines of Icons, but when I try to rearrange them I realized, that the behave like 6 columns of Icons. The effect of this is, that the result when a App is moved (green button function) the result is very hard to predict.
So this one of the things that must be improved at the SmartTV home.
Enjoy your TV, it's fun!